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Shirley Wisconsin Wind Project Noise Health Effects

Below is a letter explaining the Shirley Wisconsin Wind Project Noise Health Effects testing done recently.  The email explaining the document is listed below to begin reading. 

Download the entire document here:


From: <email is hidden but revealed within report>
Subject: Search for Infrasound in Wisconsin homes near wind turbines finds homes saturated from upper
floors to basements.
Date: December 28, 2012 2:57:37 PM EST
To: <email is hidden but revealed within report>
To all:
Please find attached a report for a wind utility in Wisconsin that was the focus of a study requested by, and partly sponsored by, the  Wis. PSC. The purpose was to determine whether infrasound was present in the homes of three families in the footprint of the Shirley Wind project (owned by Duke Energy).  These families have reported adverse health effects since the wind turbine utility commenced operation. Two have been forced out of their homes. They report experiencing symptoms of the type associated with wind turbine syndrome.  These families are my clients and they offered to act as intervener’s in another Wisconsin case, Highland Wind which is in the application hearing phase.  50 affidavits were filed by them and other residents near the utility describing adverse health effects and home abandonment for the eight turbine Shirley Wind project (click here for video) using Nordex N100 2.5 MW wind turbines.

Three homes were studied.  Two of which I are my clients where I have also conducted sound testing for infra and low frequency sound and confirmed its presence. .  R1 is about 3500 feet from the nearest wind turbine. R2 is about 1100 feet and R3 is about 7000 feet away.  R1 and R3 are my clients.  All three homes were found to have measurable infra and low frequency sound from the wind turbines with levels decreasing as distance increases. The peak acoustic energy was found at the wind turbine’s blade passage frequency which is less than 1 Hz for the Shirley Wind wind turbines.  Most modern upwind industrial scale wind turbines, including the 1.5 MW turbines commonly installed over the past 5 years, can operate with hub rotation speeds that are similar to those of the Nordex.    As turbine sizes (blade length, tower height, and in general power output) increase the more likely it is that the hub rpm will be in the range similar to that of the Nordex units.  Rob Rand has a chart in the Team Report that shows the range of rpm’s against the frequency associated with inducing nausea that shows this trend.  This is an important chart for showing how the conclusions for this PSC study of a single wind utility has implications for other wind utilities using other makes and models of wind turbines. A revision to that chart did not make it into the report as posted on the PSC site so I have included it below my email and as an attachment.

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